What is a mole?
A) The amount of a substance that consists of as many entities as there are atoms in exactly 12 grams of the element carbon-12
B) The number of atoms of a substance found in 10 mL of the substance
C) The total mass of the substance necessary to contain exactly Avogadro's number of atoms
D) The volume of atoms in the substance divided by Avogadro's number
A
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A Bier block is used for upper extremities; no tourniquet is necessary
Indicate whether the statement is true or false.
Which of the following is TRUE regarding the elderly?
A) A decrease in estrogen leads to increased cardiovascular disease in postmenopausal women. B) Cardiac output remains constant, but hypercholesterolemia and hypertension increase. C) There is a marked increase in obesity which is associated with the onset of type 1 diabetes. D) Osteoporosis can occur in both genders, but is especially common in men.